Slickline Hand Jarring results Lost Time Injury

Whilst carrying out well services operations on an NUI (Normally Unmanned Installation), a member of the well services crew sustained an injury to their lower right leg.

At the time of incident the injured person (IP) was in the process of hand jarring the wireline and in doing so he placed his right foot on top of the horizontal section of the wire to apply downward pressure. At the same time, he pulled the vertical section of the wire with his hand in order to jar the wire. As he carried out the 1st jar, the tool string, which weighed 130kg, dislodged from a hung up point in the wellbore and dropped a further 2-3ft. This caused the wire at surface to come under tension and spring upwards 3ft causing the IP's right foot to move upwards, which in turn caused him to twist and fall over.